So, in other words, Julia is just a token who's being stereotyped in ways that are offensive to autistics out there:
To be fair, ARTHUR has been under similar criticism with their own autistic character who has Asperger's Syndrome.
ASAN Has Ended Partnership With Sesame Street - Autistic Self Advocacy Network
The Autistic Self Advocacy Network condemns Sesame Street’s decision to further stigma against autistic children and adults in their new Public Service Announcements. For several years, ASAN consulted with Sesame Street on their See Amazing project and the development of their autistic...
autisticadvocacy.org
To be fair, ARTHUR has been under similar criticism with their own autistic character who has Asperger's Syndrome.